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Add support for sharing files with user groups

This commit is contained in:
Michael Gapczynski 2011-07-28 19:42:02 -04:00
parent 31a067b5a3
commit 5bc0619234
1 changed files with 37 additions and 10 deletions
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47
apps/files_sharing/lib_share.php
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@ -67,7 +67,30 @@ class OC_SHARE {
}
}
}
/**
* Get the user and the user's groups and put them into an array
* @return An array to be used by the IN operator in a query for uid_shared_with
*/
private static function getUserAndGroups() {
$self = OC_USER::getUser();
$groups = OC_GROUP::getUserGroups($self);
array_unshift($groups, $self);
return $groups;
}
/**
* Create a string of ?s based on the specified count
* @return A string to be placed inside the IN operator in a query for uid_shared_with
*/
private static function prepareIN($count) {
$questionMarks = "?";
for($i = 1; $i < $count; $i++) {
$questionMarks .= ",?";
}
return $questionMarks;
}
/**
* Create a new entry in the database for a file inside a shared folder
*
@ -119,8 +142,9 @@ class OC_SHARE {
// Remove any duplicate '/'
$folder = preg_replace('{(/)\1+}', "/", $folder);
$length = strlen($folder);
$query = OC_DB::prepare("SELECT uid_owner, source, target FROM *PREFIX*sharing WHERE SUBSTR(source, 1, ?) = ? OR SUBSTR(target, 1, ?) = ? AND uid_shared_with = ?");
return $query->execute(array($length, $folder, $length, $folder, OC_USER::getUser()))->fetchAll();
$userAndGroups = self::getUserAndGroups();
$query = OC_DB::prepare("SELECT uid_owner, source, target FROM *PREFIX*sharing WHERE SUBSTR(source, 1, ?) = ? OR SUBSTR(target, 1, ?) = ? AND uid_shared_with IN(".self::prepareIN(count($userAndGroups)).")");
return $query->execute(array_merge(array($length, $folder, $length, $folder), $userAndGroups))->fetchAll();
}
/**
@ -132,13 +156,14 @@ class OC_SHARE {
// Remove any duplicate or trailing '/'
$target = rtrim($target, "/");
$target = preg_replace('{(/)\1+}', "/", $target);
$query = OC_DB::prepare("SELECT source FROM *PREFIX*sharing WHERE target = ? AND uid_shared_with = ? LIMIT 1");
$userAndGroups = self::getUserAndGroups();
$query = OC_DB::prepare("SELECT source FROM *PREFIX*sharing WHERE target = ? AND uid_shared_with IN(".self::prepareIN(count($userAndGroups)).") LIMIT 1");
// Prevent searching for user directory e.g. '/MTGap/files'
$userDirectory = substr($target, 0, strpos($target, "files") + 5);
while ($target != "" && $target != "/" && $target != "." && $target != $userDirectory) {
// Check if the parent directory of this target location is shared
$target = dirname($target);
$result = $query->execute(array($target, OC_USER::getUser()))->fetchAll();
$result = $query->execute(array_merge(array($target), $userAndGroups))->fetchAll();
if (count($result) > 0) {
break;
}
@ -160,8 +185,9 @@ class OC_SHARE {
// Remove any duplicate or trailing '/'
$target = rtrim($target, "/");
$target = preg_replace('{(/)\1+}', "/", $target);
$query = OC_DB::prepare("SELECT source FROM *PREFIX*sharing WHERE target = ? AND uid_shared_with = ? LIMIT 1");
$result = $query->execute(array($target, OC_USER::getUser()))->fetchAll();
$userAndGroups = self::getUserAndGroups();
$query = OC_DB::prepare("SELECT source FROM *PREFIX*sharing WHERE target = ? AND uid_shared_with IN(".self::prepareIN(count($userAndGroups)).") LIMIT 1");
$result = $query->execute(array_merge(array($target), $userAndGroups))->fetchAll();
if (count($result) > 0) {
return $result[0]['source'];
} else {
@ -180,14 +206,15 @@ class OC_SHARE {
* @return True if the user has write permission or false if read only
*/
public static function isWriteable($target) {
$query = OC_DB::prepare("SELECT is_writeable FROM *PREFIX*sharing WHERE target = ? AND uid_shared_with = ? LIMIT 1");
$result = $query->execute(array($target, OC_USER::getUser()))->fetchAll();
$userAndGroups = self::getUserAndGroups();
$query = OC_DB::prepare("SELECT is_writeable FROM *PREFIX*sharing WHERE target = ? AND uid_shared_with IN(".self::prepareIN(count($userAndGroups)).") LIMIT 1");
$result = $query->execute(array_merge(array($target), $userAndGroups))->fetchAll();
if (count($result) > 0) {
return $result[0]['is_writeable'];
} else {
// Check if the folder is writeable
$folders = OC_SHARE::getParentFolders($target);
$result = $query->execute(array($folders['target'], OC_USER::getUser()))->fetchAll();
$result = $query->execute(array_merge(array($target), $userAndGroups))->fetchAll();
if (count($result) > 0) {
return $result[0]['is_writeable'];
} else {